25220298482 has 4 divisors (see below), whose sum is σ = 37830447726. Its totient is φ = 12610149240.

The previous prime is 25220298479. The next prime is 25220298487. The reversal of 25220298482 is 28489202252.

It is a Cunningham number, because it is equal to 158809²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 25220298481 + 1 = 158809^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (25220298487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6305074619 + ... + 6305074622.

Almost surely, 2^25220298482 is an apocalyptic number.

25220298482 is a deficient number, since it is larger than the sum of its proper divisors (12610149244).

25220298482 is a wasteful number, since it uses less digits than its factorization.

25220298482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12610149243.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 25220298482 in words is "twenty-five billion, two hundred twenty million, two hundred ninety-eight thousand, four hundred eighty-two".